# 04 - Eye and Head Gaze

## Concepts and Discussion

## What's the difference between eye and head gaze?

### What is 6 Degrees of Freedom?

### What are good use cases for eye or head tracking?

### What are the security concerns with using eye-tracking?

## How to get permission to use eye-tracking?

### How to setup eye-tracking?

### How to simulate eye-tracking in the Unity editor?

### How to enable eye calibration?

### How to use eye-tracking for selection of an object?

### How to use eye-tracking for infinite scroll?

### How to visualize eye tracking data?

### How to setup head tracking?

## What could go wrong?

### Further Reading


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